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authorNathaniel Shead <nathanieloshead@gmail.com>2024-01-03 15:29:51 +1100
committerNathaniel Shead <nathanieloshead@gmail.com>2024-01-07 21:05:14 +1100
commit63b531e6f8783e8624502d890dc422379de47a9a (patch)
tree34e2eb1ca5e299ff7470ddb453c5aa06d83abd65 /gcc
parent7f24446a3cf67d1346c78b4667fba74b73a23302 (diff)
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c++: Export usings referring to global module fragment [PR109679]
This patch stops 'add_binding_entity' from ignoring all names in the global module fragment, since they should still be exported if named in an exported using-declaration. PR c++/109679 gcc/cp/ChangeLog: * module.cc (depset::hash::add_binding_entity): Don't skip names in the GMF if they've been exported with a using declaration. gcc/testsuite/ChangeLog: * g++.dg/modules/using-11.h: New test. * g++.dg/modules/using-11_a.C: New test. * g++.dg/modules/using-11_b.C: New test. Signed-off-by: Nathaniel Shead <nathanieloshead@gmail.com>
Diffstat (limited to 'gcc')
-rw-r--r--gcc/cp/module.cc6
-rw-r--r--gcc/testsuite/g++.dg/modules/using-11.h2
-rw-r--r--gcc/testsuite/g++.dg/modules/using-11_a.C9
-rw-r--r--gcc/testsuite/g++.dg/modules/using-11_b.C8
4 files changed, 23 insertions, 2 deletions
diff --git a/gcc/cp/module.cc b/gcc/cp/module.cc
index a947616..e0759a9 100644
--- a/gcc/cp/module.cc
+++ b/gcc/cp/module.cc
@@ -12832,8 +12832,10 @@ depset::hash::add_binding_entity (tree decl, WMB_Flags flags, void *data_)
else if (TREE_CODE (inner) == TEMPLATE_DECL)
inner = DECL_TEMPLATE_RESULT (inner);
- if (!DECL_LANG_SPECIFIC (inner) || !DECL_MODULE_PURVIEW_P (inner))
- /* Ignore global module fragment entities. */
+ if ((!DECL_LANG_SPECIFIC (inner) || !DECL_MODULE_PURVIEW_P (inner))
+ && !(flags & (WMB_Using | WMB_Export)))
+ /* Ignore global module fragment entities unless explicitly
+ exported with a using declaration. */
return false;
if (VAR_OR_FUNCTION_DECL_P (inner)
diff --git a/gcc/testsuite/g++.dg/modules/using-11.h b/gcc/testsuite/g++.dg/modules/using-11.h
new file mode 100644
index 0000000..64c1b0c
--- /dev/null
+++ b/gcc/testsuite/g++.dg/modules/using-11.h
@@ -0,0 +1,2 @@
+// PR c++/109679
+inline int foo() { return 42; }
diff --git a/gcc/testsuite/g++.dg/modules/using-11_a.C b/gcc/testsuite/g++.dg/modules/using-11_a.C
new file mode 100644
index 0000000..b846bc7
--- /dev/null
+++ b/gcc/testsuite/g++.dg/modules/using-11_a.C
@@ -0,0 +1,9 @@
+// PR c++/109679
+// { dg-additional-options "-fmodules-ts" }
+// { dg-module-cmi M }
+
+module;
+#include "using-11.h"
+
+export module M;
+export using ::foo;
diff --git a/gcc/testsuite/g++.dg/modules/using-11_b.C b/gcc/testsuite/g++.dg/modules/using-11_b.C
new file mode 100644
index 0000000..736a48c9
--- /dev/null
+++ b/gcc/testsuite/g++.dg/modules/using-11_b.C
@@ -0,0 +1,8 @@
+// PR c++/109679
+// { dg-module-do link }
+// { dg-additional-options "-fmodules-ts" }
+
+import M;
+int main() {
+ return foo();
+}